What reading level is Under the mountain?

Under the mountain by Maurice Gee is at a Level 4-5 reading level. Recommended for Middle Grades readers (Ages 9-12).

What age is Under the mountain appropriate for?

Under the mountain is recommended for Ages 9-12. HootRating: 9LP (Light — Physical).

What genre is Under the mountain?

Under the mountain is fiction — Fiction.

Does Under the mountain have any content warnings?

Under the mountain has a HootRating of 9LP (Light — Physical). No specific content flags noted. On HootRated, every book is rated across four dimensions — emotional, physical, social, and thematic — to help parents make informed choices.

How many pages is Under the mountain?

Under the mountain by Maurice Gee is 155 pages.

Reviewed by HootRated editorial · Last updated June 9, 2026

Under the mountain

Maurice Gee

Under the mountain

Age Rating, Reading Level & Content Guide

by Maurice Gee

Reading Level 4-5 9LP Ages 9-12 Balanced Read

The text is written at a 4th grade reading level, the subject matter is intended for middle graders (ages 9–12), and the content is mild with minimal sensitive material.

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About This Book

Theo and Rachel sprint through the shadowy streets of Auckland, their hearts pounding as giant creatures loom behind them. Strange powers awaken inside the twins, glowing with a fierce energy they barely understand. But can they stop the monsters before it's too late?

Themes

Adventure Fantasy World-Building Family Friendship

Quick Assessment

Under the Mountain follows twins Theo and Rachel as they discover supernatural abilities during a family vacation in Auckland. Together, they face mysterious giant creatures threatening the world, blending fantasy and adventure suitable for readers aged 9-12. The story contains mild peril and fantasy violence but remains appropriate for middle-grade audiences.

Why we rated Under the mountain 9LP

Under the mountain is written at a Level 4-5 reading level across 155 pages. Strong independent readers around grade 5.5 can typically handle this book on their own; with parent or teacher support, Under the mountain works for readers up to grade 6.5.

We rate Under the mountain as 9LP ("Light — Physical") because the content sits in the "Mild" range — mild conflict — the kind a child encounters in normal play and sibling life. Across our four dimensions (emotional, physical, social, thematic) the book reads as evenly mild; no single dimension stands out as a concern.

No specific content flags were raised by community reviewers, which is consistent with the mild intensity score.

Thematically, Under the mountain explores adventure, fantasy world-building, family, and friendship — these threads give the book room to mean different things to different readers.

Good fit for

✓ Children in the Ages 9-12 range — the maturity and attention span match the story's pacing.
✓ Patient readers who enjoy slower, character-driven stories.
✓ Kids drawn to stories about adventure, fantasy world-building, family.